DES MOINES, Iowa (AP) — Changes in the Des Moines school district salary plan could mean pay freezes or bumps for some nonunion workers.

The Des Moines Register says (http://dmreg.co/Je21Fc ) changes devised by a consulting firm would cost the district nearly $778,000 — money that’s already set aside in this year’s budget.

The report submitted to the school on Tuesday says the goal of the changes is to simplify job descriptions and equalize salaries among workers who do similar work. About 165 of nearly 500 nonunion employees would be affected.

Superintendent Thomas Ahart says it will take a month or two to determine which employees may be paid too much or too little.

The consultant’s report says the number of job titles in the district would be trimmed to 84 from 268.